Sleep problems are fairly common among both adults and children. select the best answer from the choices provided

What role does differential reproduction play in natural selection? ! a) some organisms have different reproductive success due to nongenetic traits. b) some organisms have traits that them reach reproductive age. c) different methods of reproduction result in some organisms being genetically altered. d) reproduction varies among organisms due to pathogenic factors. the answer is not a or d based on other posts.

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How many years would it take the atlantic ocean to grow 500 centimeters? show your work.